Whoever, in middle age, attempts to realize the wishes and hopes of his early youth, invariably deceives himself. Each ten years of a man's life has its own fortunes, its own hopes, its own desires.

The deepest, the only theme of human history, compared to which all others are of subordinate importance, is the conflict of skepticism with faith.

The man who acts never has any conscience; no one has any conscience but the man who thinks

Few men have imagination enough for reality.

The master proves himselin recognizing his limitations.

Great passions are incurable diseases.

If you wish a wise answer, you must put a rational question.